47 replies to this topic

[firefox]

That's a bit of a open ended question firefox, what's the problem ?

Yeah sorry about that bud, just when i started rebuilding my carbs i asked minispares about needles and they sold me ''M'' needles and red springs i am bloody sure i am running very rich i have grey smoke on start-up quite a lot i have had the head off and skimmed guides checked and new oil seals put on lapped in the valves but has not cured the problem the moter mactors who did my head recon it's over fuleling just wanted to bounce this off you see if you have any ideas it's doing my napper in there is no blowback through the vents or dip stick hole and clinder pressures are highers 165 and all within 10% of each other

[firefox]

The M needle and red spring where the standard combination for the 1275 'S, so shouldn't be too far away.
How/where have you set the needle, to start of with adjust the jet until it's level with the bridge in the carb, then unscrew 22 flat's (2.5 full turns) don't forget to balance both carbs and report back how she goes.

Also make sure you've checked and adjusted your valve clearances and all are correct.

Hi Bud needle shuolder is flush with bottom of piston and i set jets level with bridge i only wound back the jet 1 and a half turns, tappets are at 8 and 10 exhaust i will reset them tomorrow and check the carbs over again then i will buzz you back cheers

[jaydee]

..tappets are at 8 and 10 exhaust i will reset them tomorrow ..

Set them at 0.015", let the exhausts a bit wider than the inlets.